#region Apache License
//
// Licensed to the Apache Software Foundation (ASF) under one or more 
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership. 
// The ASF licenses this file to you under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with 
// the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#endregion

using System;

using SampleAppendersApp.Appender;

// Configure log4net using the .config file
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
// This will cause log4net to look for a configuration file
// called ConsoleApp.exe.config in the application base
// directory (i.e. the directory containing SampleAppendersApp.exe)

namespace SampleAppendersApp
{
    /// <summary>
    /// Example of how to simply configure and use log4net
    /// </summary>
    public class LoggingExample
    {
        // Create a logger for use in this class
        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        // NOTE that using System.Reflection.MethodBase.GetCurrentMethod().DeclaringType
        // is equivalent to typeof(LoggingExample) but is more portable
        // i.e. you can copy the code directly into another class without
        // needing to edit the code.

        /// <summary>
        /// Application entry point
        /// </summary>
        /// <param name="args">command line arguments</param>
        public static void Main(string[] args)
        {
            log4net.ThreadContext.Properties["session"] = 21;

            // Hookup the FireEventAppender event
            if (FireEventAppender.Instance != null) {
                FireEventAppender.Instance.MessageLoggedEvent += new MessageLoggedEventHandler(FireEventAppender_MessageLoggedEventHandler);
            }

            // Log an info level message
            if (log.IsInfoEnabled) log.Info("Application [ConsoleApp] Start");

            // Log a debug message. Test if debug is enabled before
            // attempting to log the message. This is not required but
            // can make running without logging faster.
            if (log.IsDebugEnabled) log.Debug("This is a debug message");

            // Log a custom object as the log message
            log.Warn(new MsgObj(42, "So long and thanks for all the fish"));

            try {
                Bar();
            }
            catch (Exception ex) {
                // Log an error with an exception
                log.Error("Exception thrown from method Bar", ex);
            }

            log.Error("Hey this is an error!");

            // Log an info level message
            if (log.IsInfoEnabled) log.Info("Application [ConsoleApp] End");

            Console.Write("Press Enter to exit...");
            Console.ReadLine();
        }

        // Helper methods to demonstrate location information and nested exceptions

        private static void Bar()
        {
            Goo();
        }

        private static void Foo()
        {
            throw new Exception("This is an Exception");
        }

        private static void Goo()
        {
            try {
                Foo();
            }
            catch (Exception ex) {
                throw new ArithmeticException("Failed in Goo. Calling Foo. Inner Exception provided", ex);
            }
        }

        private static void FireEventAppender_MessageLoggedEventHandler(object sender, MessageLoggedEventArgs e)
        {
            System.Diagnostics.Trace.WriteLine("EVENT ****" + e.LoggingEvent.RenderedMessage + "****");
        }

        public class MsgObj
        {
            private readonly int _type;
            private readonly string _error;

            public MsgObj(int type, string error)
            {
                _type = type;
                _error = error;
            }

            public int MessageType
            {
                get { return _type; }
            }

            public string ErrorText
            {
                get { return _error; }
            }
        }
    }
}
